# n = 0
# #循环次数
# while n < 55:
# #循环内容
#    print("我错了")
#
#    n += 1
#
# print("当然是选择原谅你啊")

i=0
num = 0
while i%2==0 and i<100:
    num += i
    i+=2
print(num)


#continue
i=1
while i <=5:
   if i == 3:
       print("大虫子，扔掉")
       i+=1
       continue
   print(f"吃第{i}个苹果")
   i+=1

#break
i=1
while i<=5:
    if i ==4:
        print("吃不动了")
        break
    print(f"吃第{i}个苹果")
    i+=1